1. (Total 20 pts) Calculate a predominance diagram showing the solubility of Spertiniite - a rare Cu(II) hydroxide mineral, Cu(OH)2(s) - as a function of pH by plotting the logarithm of the concentration of each copper species against pH assuming the solution is in contact with Spertiniite. Consider only the following aqueous species: Cu²+; CuOH+; Cu(OH)2; Cu(OH)3. A. Write the reactions that form the aqueous species from Cu(OH)2(s) and the corresponding equilibrium relations. The equilibrium constants for the formation of the 4 aqueous species listed above are 108.68; K₂ = 100.98; K3 = 10–5; K4 = 10-18.2. (10 pt) B. Write the mass balance equation for the solution. (3 pt) C. Plot the total concentration of the dissolved species in a predominance diagram and indicate on the diagram the regions where the solution is oversaturated and undersaturated with Cu(II). Hint: The diagram can be drawn by hand. (7 pt) K₁ =
1. (Total 20 pts) Calculate a predominance diagram showing the solubility of Spertiniite - a rare Cu(II) hydroxide mineral, Cu(OH)2(s) - as a function of pH by plotting the logarithm of the concentration of each copper species against pH assuming the solution is in contact with Spertiniite. Consider only the following aqueous species: Cu²+; CuOH+; Cu(OH)2; Cu(OH)3. A. Write the reactions that form the aqueous species from Cu(OH)2(s) and the corresponding equilibrium relations. The equilibrium constants for the formation of the 4 aqueous species listed above are 108.68; K₂ = 100.98; K3 = 10–5; K4 = 10-18.2. (10 pt) B. Write the mass balance equation for the solution. (3 pt) C. Plot the total concentration of the dissolved species in a predominance diagram and indicate on the diagram the regions where the solution is oversaturated and undersaturated with Cu(II). Hint: The diagram can be drawn by hand. (7 pt) K₁ =
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter15: Equilibria Of Other Reaction Classes
Section: Chapter Questions
Problem 17E: Assuming that no equilibria other than dissolution are involved, calculate the concentration of all...
Related questions
Question
![1.
(Total 20 pts) Calculate a predominance diagram showing the solubility of
Spertiniite - a rare Cu(II) hydroxide mineral, Cu(OH)2(s) - as a function of pH
by plotting the logarithm of the concentration of each copper species against
pH assuming the solution is in contact with Spertiniite. Consider only the
following aqueous species: Cu²+; CuOH+; Cu(OH)2; Cu(OH)3.
A. Write the reactions that form the aqueous species from Cu(OH)2(s) and the
corresponding equilibrium relations. The equilibrium constants for the
formation of the 4 aqueous species listed above are
108.68; K₂ = 100.98; K3 = 10–5; K4 = 10-18.2. (10 pt)
B. Write the mass balance equation for the solution. (3 pt)
C. Plot the total concentration of the dissolved species in a predominance
diagram and indicate on the diagram the regions where the solution is
oversaturated and undersaturated with Cu(II). Hint: The diagram can be
drawn by hand. (7 pt)
K₁
=](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdcef96bb-8ba9-493e-80de-a4b6e78a1db2%2F463abf37-df2f-42f7-b58c-9e8a77db370f%2Fytg1cp_processed.png&w=3840&q=75)
Transcribed Image Text:1.
(Total 20 pts) Calculate a predominance diagram showing the solubility of
Spertiniite - a rare Cu(II) hydroxide mineral, Cu(OH)2(s) - as a function of pH
by plotting the logarithm of the concentration of each copper species against
pH assuming the solution is in contact with Spertiniite. Consider only the
following aqueous species: Cu²+; CuOH+; Cu(OH)2; Cu(OH)3.
A. Write the reactions that form the aqueous species from Cu(OH)2(s) and the
corresponding equilibrium relations. The equilibrium constants for the
formation of the 4 aqueous species listed above are
108.68; K₂ = 100.98; K3 = 10–5; K4 = 10-18.2. (10 pt)
B. Write the mass balance equation for the solution. (3 pt)
C. Plot the total concentration of the dissolved species in a predominance
diagram and indicate on the diagram the regions where the solution is
oversaturated and undersaturated with Cu(II). Hint: The diagram can be
drawn by hand. (7 pt)
K₁
=
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